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Name

dthelpview -- view a CDE help volume

Synopsis

dthelpview [options]

Description

The dthelpview utility supports the viewing of CDE online Help volumes, ASCII files or manual pages. The dthelpview utility is an integral part of the CDE application Help environment. The dthelpview utility’s functionality and user interface is almost completely that of the standard CDE general Help and quick Help dialog widgets. (See DtCreateHelpDialog(3) and DtCreateHelpQuickDialog(3) .)

Options

The following options are available:

-helpVolume volume
Specifies the name of the <filename>.sdl file you want to view. If locationId is not set, the default _HOMETOPIC ID is used. If the requested volume is in the current working directory, or the Help volume has been properly registered, no path is required.
-locationId location_id
Specifies the location ID representing the desired Help topic to be viewed. By default, Helpview uses _HOMETOPIC if an ID is not specified.
-file file
Specifies a particular ASCII text file to be displayed.
-manPage man_page
Specifies a particular man page to be displayed.
-man
Displays a dialog that prompts for a man page to view, then displays the requested man page.

Environment Variables

The CDE Help system uses two environment variables for locating Help volumes and Family files within the desktop environment:

DTHELPSEARCHPATH
System search path environment variable for locating Help volumes on local and remote nfs mounted systems.
DTHELPUSERSEARCHPATH
Users search path environment variable for locating user specific Help volumes on local and remote nfs mounted systems.

The environment variables contain colon-separated lists of directory paths. Each directory path can contain both environment variable names as well as special field descriptors that are expanded at runtime via each Help component that uses these environment variables.

Field descriptors consist of a % followed by a single character. Field descriptors and their substitution values are:

%H
This value is replaced with the current volume name being searched for.
%L
Replaced with the current value of the LANG environment variable.
%%
Replaced with a single %.

The default value for DTHELPUSERSEARCHPATH is:

$HOME/.dt/help/$DTUSERSESSION/%H: $HOME/.dt/help/$DTUSERSESSION/%H.sdl: $HOME/.dt/help/$DTUSERSESSION/%H.hv: $HOME/.dt/help/%H: $HOME/.dt/help/%H.sdl: $HOME/.dt/help/%H.hv

The DTHELPUSERSEARCH is first searched for the requested volume. If the volume is not found, the DTHELPSEARCHPATH value is searched.

The default value for DTHELPSEARCHPATH path is: /etc/dt/appconfig/help/%L/%H: /etc/dt/appconfig/help/%L/%H.sdl: /etc/dt/appconfig/help/%L/%H.hv: /etc/dt/appconfig/help/C/%H: /etc/dt/appconfig/help/C/%H.sdl: /etc/dt/appconfig/help/C/%H.hv: /usr/dt/appconfig/help/%L/%H: /usr/dt/appconfig/help/%L/%H.sdl: /usr/dt/appconfig/help/%L/%H.hv: /usr/dt/appconfig/help/C/%H: /usr/dt/appconfig/help/C/%H.sdl: /usr/dt/appconfig/help/C/%H.hv

Resources

For information on Help dialog widget resources, refer to DtCreateHelpDialog(3) or DtCreateHelpQuickDialog(3) .

The dthelpview utility’s specific resources set in the Dthelpview app-defaults file are: 


CWDthelpview*manBox*rows: 32
Dthelpview*manBox*columns: 80
Dthelpview*fileBox*rows: 32
Dthelpview*fileBox*columns: 80
Dthelpview*man_text.columns: 20

File

Following files are used in conjunction with the dthelpview application:

Dthelpview
App-defaults file used by dthelpview.

Examples

dthelpview -helpVolume dtintro.sdl -locationId _hometopic
Displays the topic associated with _hometopic in the Help volume dtintor.sdl.
dthelpview -file /etc/checklist
Displays the file /etc/checklist in a general Help dialog
dthelpview -man grep
Displays the grep man page in a quick Help dialog

See Also

dtsearchpath(1) , CDE Help System Author’s and Programmer’s Guide.

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